PYSEC-2026-1325
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/ecdsa/PYSEC-2026-1325.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-1325
- Aliases
- Published
- 2026-07-07T11:45:30.953457Z
- Modified
- 2026-07-07T17:46:44.612835542Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- Minerva timing attack on P-256 in python-ecdsa
- Details
-
python-ecdsa has been found to be subject to a Minerva timing attack on the P-256 curve. Using the
ecdsa.SigningKey.sign_digest()API function and timing signatures an attacker can leak the internal nonce which may allow for private key discovery. Both ECDSA signatures, key generation, and ECDH operations are affected. ECDSA signature verification is unaffected. The python-ecdsa project considers side channel attacks out of scope for the project and there is no planned fix. - References
-
- https://github.com/tlsfuzzer/python-ecdsa/security/advisories/GHSA-wj6h-64fc-37mp
- https://nvd.nist.gov/vuln/detail/CVE-2024-23342
- https://github.com/tlsfuzzer/python-ecdsa
- https://github.com/tlsfuzzer/python-ecdsa/blob/master/SECURITY.md
- https://minerva.crocs.fi.muni.cz
- https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python
- https://pypi.org/project/ecdsa
- https://github.com/advisories/GHSA-wj6h-64fc-37mp
Affected packages
PyPI / ecdsa
Package
- Name
- ecdsa
- View open source insights on deps.dev
- Purl
- pkg:pypi/ecdsa
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected